Characterization of a New Pm2 Allele Conferring Powdery Mildew Resistance in the Wheat Germplasm Line FG-1

doi:10.3389/fpls.2016.00546

	Characterization of a New Pm2 Allele Conferring Powdery Mildew Resistance in the Wheat Germplasm Line FG-1
	Ma, Pengtao 1; Xu, Hongxng 1; Li, Lihui 2; Zhang, Hongxia 1; Han, Guohao 1; Xu, Yunfeng 1; Fu, Xiaoyi 3; Zhang, Xiaotian 1; An, Diaoguo 1
刊名	FRONTIERS IN PLANT SCIENCE
	2016
卷号	7 页码:-
关键词	allelic variation Blumeria graminis MAS Triticum aestivum Pm2 locus
ISSN号	1664-462X
DOI	10.3389/fpls.2016.00546
通讯作者	Ma, Pengtao
英文摘要	Powdery mildew has a negative impact on wheat production. Novel host resistance increases the diversity of resistance genes and helps to control the disease. In this study, wheat line FG-1 imported from France showed a high level of powdery mildew resistance at both the seedling and adult stages. An F2 population and F2:3 families from the cross FG-1 x Mingxian 169 both fit Mendelian ratios for a single dominant resistance gene when tested against multiple avirulent Blumeria tritici f. sp. tritici (Bgt) races. This gene was temporarily designated PmFG. PmFG was mapped on the multi-allelic Pm2 locus of chromosome 5DS using seven SSR, 10 single nucleotide polymorphism (SNP) derived and two SCAR markers with the flanking markers Xbwm21/Xcfd81/Xscar112 (distal) and Xbwm25 (proximal) at 0.3 and 0.5 cM being the closest. Marker SCAR203 co-segregated with PmFG. Allelism tests between PmFG and documented Pm2 alleles confirmed that PmFG was allelic with Pm2. Line FG-1 produced a significantly different reaction pattern compared to other lines with genes at or near Pm2 when tested against 49 Bgt isolates. The PmFG-linked marker alleles detected by the SNP-derived markers revealed significant variation between FG-1 and other lines with genes at or near Prn2. It was concluded that PmFG is a new allele at the Prn2 locus. Data from seven closely linked markers tested on 31 wheat cultivars indicated opportunities for marker-assisted pyramiding of this gene with other genes for powdery mildew resistance and additional traits.
学科主题	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000374732800002
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4536]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Shijiazhuang, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100193, Peoples R China 3.Shijiazhuang Acad Agr & Forestry Sci, Shijiiazhuang, Peoples R China
推荐引用方式 GB/T 7714	Ma, Pengtao,Xu, Hongxng,Li, Lihui,et al. Characterization of a New Pm2 Allele Conferring Powdery Mildew Resistance in the Wheat Germplasm Line FG-1[J]. FRONTIERS IN PLANT SCIENCE,2016,7:-.
APA	Ma, Pengtao.,Xu, Hongxng.,Li, Lihui.,Zhang, Hongxia.,Han, Guohao.,...&An, Diaoguo.(2016).Characterization of a New Pm2 Allele Conferring Powdery Mildew Resistance in the Wheat Germplasm Line FG-1.FRONTIERS IN PLANT SCIENCE,7,-.
MLA	Ma, Pengtao,et al."Characterization of a New Pm2 Allele Conferring Powdery Mildew Resistance in the Wheat Germplasm Line FG-1".FRONTIERS IN PLANT SCIENCE 7(2016):-.